Hybrid PV/battery-storage unit for residential applications

Under their “Gone Green” deployment scenario, National Grid forecast that energy generated from photovoltaics (PV) in the UK is expected to rise from 2 to 15 GW over the next 20 years. This is being driven by the UK’s legal obligations around installing renewable energy sources and cutting greenhouse gases, the rising cost of energy and concerns around the security of supply. Power electronic converters are a key enabling technology for PV and other low-carbon technologies (LCTs). However, the use of LCTs can result in problems for the electrical distribution network such as supply voltage distortion and over-voltages, which threaten to limit or delay their uptake. The project described in this paper is investigating the use of GaN based converters in a hybrid PV/battery-storage unit for residential applications. The potential for MHz operation of GaN offers smaller, lighter, more efficient and lower cost converters compared with existing silicon based units and their deployment could lead to an increase in the installed LCT capacity on the network

Means and Standard Deviations of Regions of Interest as a Function of Condition.^*

<p>Means and Standard Deviations of Regions of Interest as a Function of Condition.^{<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0162749#t003fn001" target="_blank">*</a>}</p

Mean scores and standard deviations for participant’s answers to each of the three questions according to their experience while watching the film.

<p>Mean scores and standard deviations for participant’s answers to each of the three questions according to their experience while watching the film.</p

Thermo-grams: Development of temperature throughout each condition (two pictures are provided for baseline, pre-crying and crying).

<p>Thermo-grams: Development of temperature throughout each condition (two pictures are provided for baseline, pre-crying and crying).</p

Representation of the coding performed for each participant according to thematic group.

<p>Representation of the coding performed for each participant according to thematic group.</p

Combining geochemistry and geochronology of transported regolith to reveal bedrock-hosted mineralization in the arid east Wongatha area of south central Western Australia

Screening and analytical data for the <50-µm fraction of regolith from three profile sites in the east Wongatha are

Mean Temperature Values for the Nose and Maxillary Area According to Time.

<p>Mean Temperature Values for the Nose and Maxillary Area According to Time.</p

Main effect analyses according to condition for each region of interest.^*

<p>Main effect analyses according to condition for each region of interest.^{<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0162749#t002fn001" target="_blank">*</a>}</p

Line graph: Development of temperature for each region of interest according to condition.

<p>Line graph: Development of temperature for each region of interest according to condition.</p

The degree of temperature change from one condition to another based on the coding of two independent raters.

<p>The degree of temperature change from one condition to another based on the coding of two independent raters.</p